With the rapid development of industrial automation and smart home,the motor drive system is facing multiple tests of energy efficiency ratio,response speed and control accuracy.It is difficult for a simple universal microcontroller to give consideration to both performance and cost under complex working conditions.As an innovative enterprise in the field of MCU in China,Smart Microelectronics recently officially released its new generation of motor master control chip-——MM32SPIN0260.This product aims to provide better motor control solutions for developers through deeply integrated hardware architecture and special algorithm support.

 

　　1.Focus on motor control,and upgrade the core and computing power.

 

　　The series of MCU motor master control chip MM32SPIN0260 is a new member of the smart MindSPIN family,which is positioned as a special master control chip for high-performance motors.It is designed based on the Arm®Cortex®-M0++core,and its maximum operating frequency can reach 96MHz.In order to meet the complex and intensive operation requirements in motor control,the motor master control chip not only integrates a 32-bit divider and a hardware squarer on the hardware level,but also greatly improves the execution efficiency of algorithms such as vector control(FOC)through the design of DMA(Direct Memory Access)to ensure the real-time and stability of the system under high dynamic response.

 

　　2.Simulate peripherals with high precision and reshape the system integration.

 

　　In the traditional motor drive scheme,external operational amplifier and comparator often mean the increase of cost and the challenge of PCB layout.The main control chip MM32SPIN0260 of MCU motor effectively solves this pain point through highly integrated design:

 

　　Accurate analog front-end:MCU chip is built with up to 4 programmable operational amplifiers(PGA)and 2 analog comparators.This means that developers can complete current sampling and amplification without external discrete amplifier circuits.With two 12-bit ADCs(1 msps sampling rate),the MCU motor master control chip can accurately capture winding current and back electromotive force,which provides hardware guarantee for sensorless FOC control.

 

　　Hardware-level protection mechanism:the analog comparator can be directly linked with the timer to form a fast braking channel.In case of unexpected situations such as overcurrent,hardware protection can be triggered without software intervention,which greatly improves the safety and reliability of motor drivers.

 

　　3.Flexible timing and control to adapt to diverse motor types.

 

　　Whether it is air-conditioning compressor,high-speed hair dryer or robot joint motor,the accuracy of PWM waveform is extremely demanding.MCU motor master control chip MM32SPIN0260 is equipped with a 16-bit advanced timer(supporting dead-time control and emergency braking functions)and a 32-bit and three 16-bit general timers.This timer combination can not only accurately control the speed and torque of brushless motor(BLDC),but also flexibly meet the subdivision driving requirements of stepping motor and brush motor.

 

　　4.Wide voltage operation and low power design

 

　　Considering the complexity of motor application scenarios,MCU motor main control chip supports a wide voltage working range of 2.5V to 5.5V,and provides an extended industrial-grade model from-40℃to+105℃.The addition of various power-saving modes also makes it perform well in battery-powered portable devices(such as balance cars and power tools).

 

　　5.Comparison of model parameters of MCU motor master control chip
 

 

　　6.The software and hardware are in parallel,accelerating the product landing.

 

　　In order to make the MM32SPIN0260 quickly put into practical application,Smart Microelectronics simultaneously launched a complete development kit:

 

　　MiniBoard and Motor-DK:Provide a complete reference design from low voltage(12V-30V)to high voltage(220Vac),and support various current sampling methods such as single resistor/double resistor/triple resistor.
 

 

　　Rich algorithm library support:Smart provides a motor control algorithm library including non-inductive square wave and single/double resistance FOC.Developers can directly call these low-level functions,shifting the focus of development from the tedious debugging of the low-level drivers to the innovation of the upper-level application logic.

 

 

　　The introduction of MM32SPIN0260 is not only another deep technical cultivation of smart microelectronics in the field of motor master control chips,but also a manifestation of its rapid response to market demand.By combining powerful kernel,rich analog peripherals and mature algorithm library,Lingdong is committed to lowering the development threshold of motor drive and helping China manufacturing to move towards intelligence and high efficiency.Yingshang Microelectronics has a professional technical support team.As a smart first-class agent,we can provide customers with solutions from selection to design,and provide you with high-performance and low-cost MCU master control chips.If you need related products,please call at any time.



Keywords:MCU